/Engine/Plugins/Runtime/nDisplay/Source/DisplayClusterScenePreview/Public/DisplayClusterLightCardEditorHelper.h
Converts a pixel coordinate into a point and direction vector in world space
void PixelToWorld ( const [FSceneView](API\Runtime\Engine\FSceneView) & View, const FIntPoint & PixelPos, FVector & OutOrigin, FVector & OutDirection ) const